T&R Test Equipment

05/06/2026

⚡ What happens if a protection system doesn't operate when it should?

The answer can range from damaged equipment and unnecessary outages to significant safety risks.

That is why primary current injection testing remains such an important part of commissioning and maintenance programmes worldwide.

The 750ADM Mk4 helps engineers verify the performance of relays, circuit breakers, CTs, auto-reclosers, and other protection equipment before problems occur in service.

✅ Primary current injection up to 750A
✅ Secondary injection output up to 40A
✅ Accurate timing measurements
✅ USB data storage and waveform capture
✅ Compact and portable design

By combining flexibility, portability, and accurate measurement capabilities, the 750ADM Mk4 allows engineers to carry out a wide range of tests using a single instrument.

Because when it comes to power system protection, confidence is built through testing. ⚡

Read more: https://www.trtest.com/product/750adm-mk4-primary-current-injection-test-set/

29/05/2026

⚡ For commissioning engineers, no two days on site are ever quite the same — and test equipment needs to keep up.

That’s where the 200ADM-P Mk2 proves its value.

Built to handle everything from low-current injection to high-current testing, relay timing, waveform capture, AC/DC measurement and more, it gives engineers the flexibility to perform multiple tests with one reliable instrument.

In real-world commissioning work, that means less switching between equipment, faster testing, and greater confidence in the results. ✅

The 200ADM-P Mk2 continues to support engineers across a wide range of power system applications, helping make complex testing simpler and more efficient.

We are also looking forward to featuring the 200ADM-P Mk2 in the remaining workshops this year with PASS Ltd, where attendees will be able to see it in action. 👏

Read more: https://www.trtest.com/product/200adm-p-mk2-secondary-current-injection-test-set/

22/05/2026

⚡ Our upcoming High Voltage Testing Workshop in collaboration with PASS Ltd is now officially FULLY BOOKED!

A huge thank you to everyone who signed up for the Leeds session — we are looking forward to a fantastic day of practical learning, live demonstrations, and technical discussion.

The workshop will cover:

✔ Relay testing
✔ Primary injection testing
✔ HV safety and commissioning
✔ Practical testing techniques and best practice

Missed out this time?

Do not worry — we will be hosting two more workshops later this year:

📍 Hamilton (Glasgow) – 22 September 2026
🔗 Register here: https://www.eventbrite.co.uk/e/high-voltage-testing-workshop-hamilton-relay-testing-pi-hv-tickets-1988401924683?aff=oddtdtcreator

📍 Stevenage – 6 October 2026
🔗 Register here: https://www.eventbrite.co.uk/e/high-voltage-testing-workshop-stevenage-relay-testing-pi-hv-tickets-1988404981827?aff=oddtdtcreator

Thank you once again for the incredible response and continued support.

High-voltage testing & commissioning at our hands-on workshop in Hamilton, Scotland!

19/05/2026

⚡ We are exhibiting today at EBR Dagarna in Karlstad alongside our partner TestNordik AB.

Held at Norra Fältet, the event is bringing together professionals from across the electrical and power industries, and we are pleased to be part of it.

We are showcasing high current and high voltage testing equipment trusted by engineers worldwide for commissioning, maintenance, and HV safety applications.

If you are attending the event or are in the area, make sure to stop by and say hello 👋

15/05/2026

⚡ Bigger is not always better — especially when you have to carry it around site all day.

For many relay testing applications, engineers simply do not need a large, heavy 100A test set. But traditionally, that has often been the only option available.

The 50ADM-P changes that.

Designed for portability without compromising capability, the 50ADM-P delivers:

✔ Up to 50A output current
✔ Precise relay and breaker testing
✔ Advanced timing functions
✔ USB data storage
✔ True RMS metering with waveform capture
✔ Compact, easy-to-carry design

Perfect for commissioning, maintenance, and protection testing, it gives engineers the functionality they need — without the unnecessary weight.

Less bulk. Less strain. More efficient testing.

Read more: https://www.trtest.com/product/50adm-p-secondary-current-injection-test-set/

07/05/2026

⚡ Want to sharpen your high voltage testing skills?

Join T&R Test Equipment Ltd. & PASS Ltd for a FREE practical HV Testing Workshop designed for engineers working in commissioning, maintenance, and protection testing.

Across these sessions, you will get hands-on experience with real test equipment while exploring:

✔ Relay testing techniques
✔ Primary & secondary injection testing
✔ HV safety best practice
✔ Common testing errors and how to avoid them
✔ Live demonstrations from industry experts

📍 Leeds
📅 26 May 2026
🕘 9:15am – 3:00pm
🍽 Lunch included

No sales slides. No theory overload.

Just practical knowledge, expert guidance, and real-world testing insight.

Spaces are limited, so secure your free place today.

Register here: https://www.eventbrite.co.uk/e/high-voltage-testing-workshop-leeds-relay-testing-pi-hv-commissioning-tickets-1986899594172?aff=oddtdtcreator

High-voltage testing & commissioning at our hands-on workshop!

01/05/2026

⚡ What happens if insulation fails under voltage?

In high voltage systems, insulation breakdown can lead to equipment damage, outages, and safety risks.

That is why testing is essential before anything is energised.

The KV30-40D MK4 High Voltage Test Set allows engineers to safely and accurately test insulation strength:

✔ Variable output up to 30kV
✔ True RMS voltage and current measurement
✔ Adjustable trip protection to prevent damage
✔ Timed test sequences for consistent results
✔ Safety interlocks for secure operation

By simulating real electrical stress, weak insulation can be identified early — before it leads to failure in service.

This is exactly why such equipment has been trusted and proven in the field worldwide for decades.

Read more: https://www.trtest.com/product/kv30-40d-mk4-test-set/

24/04/2026

⚡ Behind every successful HV shutdown is thorough, methodical testing.

Great to see Jaguar Building Services Ltd. delivering comprehensive maintenance across HV switchgear, including:

✔ Full relay testing (Schneider Sepam S80 & T20)
✔ Verification of external trip circuits (REF, EPO, intertrips)
✔ Confirmation of VCB trip and latch operation
✔ Accurate labelling aligned with protection functionality

Our 100ADM Pelicase Secondary Injection Test Set was used as part of this process — helping engineers validate protection performance with confidence.

In environments like this, there is no margin for error. Proper testing ensures systems respond correctly under fault conditions, preventing damage and ensuring safety.

👏 Well done to everyone involved.

17/04/2026

⚡ What happens if a protection system doesn’t trip when it should? ⚡

In high voltage environments, that risk is not acceptable.

Primary current injection testing ensures that everything works together — CTs, relays, and breakers — before a system is energised.

The CU-Ps Mk2 Primary Current Injection Test System is designed for exactly this purpose:

✔ High current output up to 6000A
✔ Accurate timing measurements down to 1ms
✔ True RMS metering for reliable readings
✔ Data capture for reporting and analysis

By identifying issues early, engineers can avoid faults, prevent damage, and ensure safe operation from day one.

That is why equipment like this is essential in commissioning and maintenance work.

Read more: https://www.trtest.com/product/cu-ps-mk2-primary-current-injection-test-system/

10/04/2026

⚡ Safety starts before the system is energised ⚡

When working on overhead lines, engineers must be certain that cross arms and insulators are safe. There is no room for guesswork.

The MCAT+ Micro Cross Arm Tester is designed to do exactly that — helping identify insulation faults and assess safety before work begins.

✔ Detects faulty insulators
✔ Measures short circuit current (ISC)
✔ Provides clear pass / caution / fail indications
✔ Built-in safety features to protect users

Compact, portable, and built for real-world conditions, it is a trusted tool for field engineers working in demanding environments.

At T&R Test Equipment Ltd., helping engineers stay safe is always the priority.

Read more: https://www.trtest.com/product/mcat-micro-cross-arm-tester/